Rail.



No. 886,541. PATENTED MAY 5, 1908. E R. ROBINSON.

RAH].

APPLICATION FILED JULYM, 1906.

a j 2 SHEETS-SHEET 1.

I animator,

No. 886,541. PATENTED MAY 5, 1908. E. R. ROBINSON.

RAIL.

APPLICATION FILED JULY24, 1906.

F 2 SHEETSSHEET 2.

jvihlcsaeo ELBERT R. ROBINSON,

OF CHICAGO, ILLINOIS.

RAIL.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed July 24, 1906. Serial No. 327,478.

To all whom it may concern:

Be it known that I, ELBERT R. ROBINSON, a citizen of the United States, residing at Chicago, in the county of (look and State of Illinois, have invented certain new and useful Improvements in Rails and I do declare the following to be a full, clear, and exact descri tion of the invention, such as will enab e others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to rails, switches, crossings, frogs and the like for railroads and has for its object to provide a rail, switch, frog or crossing wherein the face or tread of the same is rovided with a chill and the web and flange a lowed to remain soft, as of course is obvious I can chill the face or tread and also the flange of the rail leaving the web soft. The purpose of thus chilling a portion of the rail is in order to harden the tread and wearing surface thereof in such manner that it will-withstand the continual passa e of the heavy rolling stock now common y used on railroads. By so chilling the face or tread of the rails and the like I am able to produce a rail which is so far superior to the usual rails now in use that it will greatly outwear and outlast the usual rails.

On November 14, 1904, I made application for Letters Patent of the United States covering the subject-matter of this application,

which prior application was number 232,7 59.

Referring to the accompanying drawings: Figure 1 is a vertical section throu h a mold employed for chilling a rail, the dhill being fitted between the to and bottom of the mold. Fig. 2 is a simi ar' view showing chill centered within the mold. Fig. 3 is a to plan of lower section of mold showing chill and rail in position. Fig. 4 is a plan view of the crossing. Fig. 5 is a transverse sectional view throu h a pan and rail illustrating method of chilling the rail. Fig. 6 is a transverse sectional view taken on line 6.6 of Fig. 4. Fi 7 is a transverse sectional view taken on line 77 of Fig. 4.

Like numerals of reference indicate the same parts throughout the several figures in which:

1 indicates the mold which comprises the said members 2 and 3 being provided as shown with projecting lugs 4 for accommodating the pegs 5.

6 indicates the chill which as shown in Fig. 1 is rovided with an extension 7 which is fitter between the upper section 2 and the lower section 3 of the mold in order to rigidly hold the chill in osition, a thumb screw passing through t e side 9 of the lower section 3 and engaging the chill 6 being also provided.

10 indicates the-rail which as shown in Fi s. 1 and 2 is embedded in the sand 11.

eferring now particularly to Fig. 2 it will be seen that the chill 6 is not engaged by or fitted between the upper and lower section of the mold, but is embedded centrally in the sand as shown.

Referring now to Fig. 4 which illustrates a crossing, 'it will be seen that the same may be constructed as shown at A having the intercorner of the crossing may be so constructed that when placed in position it forms a complete crossing, or the two corners B and C may be cast integral as shown, or if desired the entire crossing may be formed integral or cast in one piece as shownin Fig. 4. The corners 11 are chilled in order to excessively harden these points which are subjected to a great shock by reason of the Wheels of the rolling stock striking the crossing at the intersection of the tracks, or the entire crossing can be chilled if desired.

Referring now to Fig. 5 which illustrates a method of chilling, 12 indicates a pan filled with water and 13 indicates the rail having the face or flange thereof immersed in the water. I

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent of the United States is:

1. A railroad crossing having its intersecting rails cast inte ral, the treads or faces of l the rails being chilled while in the mold and upper member 2 and the lower member 3,

secting rails A and A cast integral, which the balance of the rails soft, slibstantially as tread chilled While in the mold, substam described. tially as described. 10

2. A railroad crossin havingtwo inter- In testimony whereof, I afiix my signature, seating rails cast integra the treads 01' faces in presence of two witnesses.- 5 of the rails being chilled in the mold, substan-. ELBERT R. ROBINSON.

tially as described. Witnesses: 3. A rail cast in the form and shape in l C. M. FORREST,

which it is to be used and having its faceor I E. HUGH DUFFY." v 

